In this Modern Era everyone knows that his/her latest mobile
can be hacked by hackers but now The sim card hacking flaw was discovered by
German programmer Karsten Nohl, who has informed mobile operators of the
potential danger.

After that all the Mobile phone users have been put on an
alert that their sim cards can be hacked anytime which leads to fraud and
soaring premium rate bills.

On the other hands, if we talk about the mobile operators
then they says that they already aware about this flaw and taking steps to
patch the flaw before customers are hit.

Worldwide Mobile Phones are Major source to be used in
accessing online banking and other sensitive personal information and if the
discovered flaw will be used by Hackers can make a privacy disaster, this flaw
also makes some noise for the mobile customers who use their smartphones to pay
bills and transfer money.

The security flaw is due to aging sim card security
technology, which has struggled to keep up with high-tech smartphones such as
the iPhone and Samsung’s Galaxy S4.

Flaw Researcher (Karsten Nohl) says something about his
Flaw:

“Give me any phone number and there is some chance I will, a
few minutes later, be able to remotely control this SIM card and even make a
copy of it,”

The hack works by manipulating a coding technology used by
operators to update sim cards. Properly equipped, a hacker can send a code to a
sim card to gain access to a phone’s systems, from where fraudulent activity
can be perpetrated.

Nohl said that a quarter of all sim cards he tested could be
hacked.

However, the international umbrella mobile operator
organisation, the GSMA, said that the flaw was limited to a minority of sim
cards and that newer sim cards may not be affected.. It said that it had
advised operators of the security risks involved.